Take icing sugar in a sifter and sieve it well. Now divide into two equal portions and set aside.
Now take a microwave safe bowl or a small sauce pan. Take water, add in gelatin and let it sit for 5 mins. Now pop it microwave and melt it for 2 mins. You can melt it gently on stove top too.
Now take it out and let it cool a bit, add in liquid glucose, vanilla, glycerine. Mix well.
Take a bowl of icing sugar, make a well. Pour this mix in and use a spoon to fold the icing sugar in. Once all the sugar is folded in, sprinkle more sugar and knead it in.
Add more sugar and keep kneading till the dough is not at all sticky. Knead it till it is smooth.
Now rub some oil over it and cover with plastic wrap. Put this in a air tight container and leave it on counter overnight. Dont refrigerate fondant.
The next day, you can add any food colouring and knead well. Add more powdered sugar if needed.
How to use fondant on cakes.
Bake your cakes, let it cool, Now decorate it with butter cream and chill it.
When you want to use it in any cakes. dust the work top with cornstarch and roll it..Then roll this rolled fondant over a rolling pin and unroll it over cake. Trim off the excess fondant.